code: def testOne(self):
      expected = [0.9828788638]
      actual = SpectralWhitening()([10] * 1, [30] * 1, [10] * 1)
  
      # Checks for a single arbitrary value
      self.assertAlmostEqualVector(actual, expected)
  
file_path: essentia/test/src/unittests/spectral/test_spectralwhitening.py
imports: from essentia_test import *
label_desc: Use image node_id 5 for calling the TestSpectralWhitening obj's underlying member method code with example usage: obj.testOne() without return types